Patents by Inventor Paul D. Johnston

Paul D. Johnston has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • MILITARY BADGE AND MAGNETIC SECURING MECHANISM
    Publication number: 20070186390
    Abstract: A military badge and magnetic securing mechanism are disclosed. The military badge is formed to include a ferromagnetic material that is magnetically attracted to a magnet. The magnetic securing mechanism includes a magnet structure that is adapted to be placed inside of a military uniform. When the magnet structure is placed inside of a military uniform and the military badge is placed proximate to the magnet structure on the outside of the uniform, the magnet structure magnetically attracts the ferromagnetic material in the military badge through the fabric of the uniform to secure the military badge to the outside of the uniform.
    Type: Application
    Filed: February 9, 2007
    Publication date: August 16, 2007
    Inventor: Paul D. Johnston
  • Method of chain combination
    Patent number: 4835251
    Abstract: Production of human relaxin or novel human relaxin analogs by combination of a human relaxin A-chain and B-chain comprises combining the reduced form of the human relaxin A-chain and the reduced form of the human relaxin B-chain in an aqueous medium having a pH of about 7.0 to 12 at room temperature, under conditions that are mildly denaturing for the relaxin B-chain such that the human relaxin or novel human relaxin analog can be formed.
    Type: Grant
    Filed: June 23, 1986
    Date of Patent: May 30, 1989
    Assignee: Genetech, Inc.
    Inventors: John P. Burnier, Paul D. Johnston
  • Removal of impurities from human leukocyte interferon preparations
    Patent number: 4534906
    Abstract: Disclosed is a method for removing impurities from leukocyte interferon preparations involving use of a unique incubation procedure.
    Type: Grant
    Filed: November 1, 1982
    Date of Patent: August 13, 1985
    Assignee: Genentech, Inc.
    Inventor: Paul D. Johnston